Md Touhid Alam Ansari

Scopus Publications

Three-point bending behavior of angle-ply GFRP laminates under static and LCF loading: Experimental and statistical analysis
Md. Touhid Alam Ansari, Kalyan Kumar Singh, Anand Gaurav
Journal of Reinforced Plastics and Composites, 2025
Deeper understanding of damage propagation in continuous fiber reinforced polymer composites is required to design safer composites. The process of sample preparation imparts sufficient damage to the free edges and can be easily considered as precursor to failure. This study examines the low-cycle fatigue (LCF) behavior and damage progression in woven angle-ply laminates under static and fatigue loading. Laminates with ply orientations of (0°/90°), ±15°, ±30°, and ±45° were tested with a load-controlled fatigue at 0.1 Hz and a stress ratio (R) of 0.1. Internal and free-edge damage were monitored using Transmitted Light Photography (TLP) and optical recording. Weibull statistics is used to generate S-N curve for reliability levels of 0.95, 0.99, 0.999, and 0.9999 and to find mean-time-to-failure (MTTF), standard deviations, and coefficient of variance (CV) in the fatigue life. TLP images showed delamination promoted by free-edge damage, while compressive face damage was caused by the loading cylinder. On-axis laminates developed fewer cracks, failing with a single through-thickness crack, while off-axis laminates exhibited multiple cracks that coalesced without a single fracture. Fiber orientation significantly influenced internal debonding, and damage from sample preparation could not be fully eliminated.
The effects of small fibre misalignment on the mechanical properties of GFRP laminates: An experimental assessment
Suleiman Lawal Daura, Shubham, Kalyan Kumar Singh, Md. Tauhid Alam Ansari, Raju Kumar Thakur, et al.
Aip Conference Proceedings, 2024
On the dispersion and experimental investigation on transverse tensile low-cycle-fatigue behaviour of GFRP nanocomposites filled with CNTs and GNPs
Md. Touhid Alam Ansari, Kalyan Kumar Singh, Anand Gaurav, Ashok Kumar Mishra, Sunil Kumar Chaudhary
International Journal of Fatigue, 2023
Influence of fabric areal density in woven GFRP laminate on abrasive water jet drilling responses
Raju Kumar Thakur, Kalyan Kumar Singh, Md. Touhid Alam Ansari
Materials and Manufacturing Processes, 2023
The objective of this investigation is to find out the effect of the woven glass fiber reinforced polymer (GFRP) laminates with different glass fiber densities, such as 610 GSM and 210 GSM, and manufactured by the hand layup technique, supported by compression molding on mechanical properties and abrasive water jet (AWJ) drilling responses. During the investigation, the woven GFRP with a fiber density of 610 GSM has been found to display greater flexural strength, interlaminar strength (ILSS), and tensile strength as compared to the woven GFRP with a fiber density of 210 GSM. The woven GFRP with a fiber density of 610 GSM has also displayed reduced drilling damage in the surface region and less delamination compared to the woven GFRP with a fiber density of 210 GSM. The results of both types of composites prove that the TR and JP considerably impact the delamination extent (DE) and surface roughness (SR). A decrease in the TR and an increase in the JP are primarily responsible for optimizing the desired machining performances. Finally, a FESEM analysis has been done to examine the machined surfaces’ morphology.
Observations of fatigue damage development in woven glass fiber-reinforced polymer composite using transmission light photography technique
Md Touhid A Ansari, Kalyan K Singh, Mohammad S Azam
Polymers and Polymer Composites, 2022
Fatigue behaviour is an important aspect for consideration while handling glass fiber-reinforced polymer (GFRP) composites. A combination of (0°/90°) and (±45°) plies are gaining practical interest in engineering applications due to their excellent mechanical properties. Properties of individual above-stated plies primarily influence the behaviour of laminates. Fatigue behaviour of on-axis (0°/90°) and off-axis (±45°) fiber orientated woven GFRP laminates was investigated. Tensile and tension-tension fatigue tests were performed on the prepared test coupons according to the ASTM standard. Fatigue test was conducted until failure at maximum applied stress of 90%, 70%, and 50% of the respective ultimate strength. Damage growth was monitored in the term of debond zones by employing the transmission light photography technique. Testing process was recorded by using a digital camera. The results were established in terms of the stress-strain curve, Wöhler curve, debond zones and dynamic stiffness. The fatigue strength of off-axis laminates was much lower than the on-axis laminates. Global damage has occurred in (0°/90°) laminates while (±45°) laminate witnessed localized damage. At higher stress levels, samples were failed at shorter lifespan with aggressive damage; however, on-axis specimens survived with longer fatigue life.
Fatigue life and damage evolution in woven GFRP angle ply laminates
Kalyan Kumar Singh, Md. Touhid Alam Ansari, Md. Sikandar Azam
International Journal of Fatigue, 2021
Effect of small ply angle variation in tensile and compressive strength of woven GFRP composite: Application of two parameter Weibull distribution
Sovan Kumar Ray, Kalyan Kumar Singh, Md Touhid Alam Ansari
Materials Today Proceedings, 2020
Effect of Ply Stacking and Fiber Volume Fraction on ILSS of Woven GFRP Laminates
Md. Touhid Alam Ansari, K. K. Singh, Md. Sikandar Azam
Smart Innovation Systems and Technologies, 2020
Effect of fabric areal density on the mechanical behaviour of symmetric and asymmetric woven GFRP composite
Md Touhid Alam Ansari, Kalyan Kumar Singh, Md Sikandar Azam
Materials Today Proceedings, 2020
Effect of Stacking Sequence and Fiber Volume Fraction on the Static Mechanical Properties of Woven GFRP Composite
Md. Touhid Alam Ansari, K. K. Singh, Md. Sikandar Azam
Lecture Notes on Multidisciplinary Industrial Engineering, 2019
Effect of Ply Lay Up Sequence on Interlaminar Shear Strength of Symmetric and Asymmetric GFRP Composite
Dilip Kumar, K.K Singh, Md Touhid Alam Ansari
Materials Today Proceedings, 2019
Fatigue damage analysis of fiber-reinforced polymer composites—A review
Md. Touhid Alam Ansari, Kalyan Kumar Singh, Mohammad Sikandar Azam
Journal of Reinforced Plastics and Composites, 2018

RECENT SCHOLAR PUBLICATIONS

Three-point bending behavior of angle-ply GFRP laminates under static and LCF loading: Experimental and statistical analysis
MTA Ansari, KK Singh, A Gaurav
Journal of Reinforced Plastics and Composites, 07316844251390976 , 2025
2025
The effects of small fibre misalignment on the mechanical properties of GFRP laminates: An experimental assessment
SL Daura, Shubham, KK Singh, MTA Ansari, RK Thakur, A Gaurav, ...
AIP Conference Proceedings 3178 (1), 080004 , 2024
2024
Influence of fabric areal density in woven GFRP laminate on abrasive water jet drilling responses
RK Thakur, KK Singh, MTA Ansari
Materials and Manufacturing Processes 38 (9), 1119-1129 , 2023
2023
Citations: 6
Fatigue life assessment of GFRP composite laminate under axial and transverse fatigue loading
N Sharma, KK Singh, MTA Ansari
Materials Today: Proceedings , 2023
2023
Citations: 6
Reliability analysis of angle ply woven GFRP composite under in-plane loading condition using two parameter Weibull distribution
KK Singh, R Shanmugam, MTA Ansari, A Gaurav
Materials Today: Proceedings , 2023
2023
Citations: 8
On the dispersion and experimental investigation on transverse tensile low-cycle-fatigue behaviour of GFRP nanocomposites filled with CNTs and GNPs
MTA Ansari, KK Singh, A Gaurav, AK Mishra, SK Chaudhary
International Journal of Fatigue 167, 107366 , 2023
2023
Citations: 18
Observations of fatigue damage development in woven glass fiber-reinforced polymer composite using transmission light photography technique
MTA Ansari, KK Singh, MS Azam
Polymers and Polymer Composites 30, 09673911221101300 , 2022
2022
Citations: 7
Fatigue life and damage evolution in woven GFRP angle ply laminates
KK Singh, MTA Ansari, MS Azam
International Journal of Fatigue 142, 105964 , 2021
2021
Citations: 67
Effect of ply stacking and fiber volume fraction on ILSS of woven GFRP laminates
MTA Ansari, KK Singh, MS Azam
Proceedings of International Conference in Mechanical and Energy Technology … , 2020
2020
Citations: 2
Effect of ply lay up sequence on interlaminar shear strength of symmetric and asymmetric GFRP composite
D Kumar, KK Singh, MTA Ansari
Materials Today: Proceedings 22, 2241-2246 , 2020
2020
Citations: 10
Effect of small ply angle variation in tensile and compressive strength of woven GFRP composite: Application of two parameter Weibull distribution
SK Ray, KK Singh, MTA Ansari
Materials Today: Proceedings 33, 5295-5300 , 2020
2020
Citations: 11
Effect of fabric areal density on the mechanical behaviour of symmetric and asymmetric woven GFRP composite
MTA Ansari, KK Singh, MS Azam
Materials Today: Proceedings 33, 5649-5652 , 2020
2020
Citations: 10
Effect of stacking sequence and fiber volume fraction on the static mechanical properties of woven GFRP Composite
MTA Ansari, KK Singh, MS Azam
Trends in Materials Engineering: Select Proceedings of ICFTMM 2018, 51-58 , 2019
2019
Citations: 7
Mechanical Properties of Woven GFRP Composite
MTA Ansari, KK Singh, MS Azam
Trends in Materials Engineering: Select Proceedings of ICFTMM 2018, 51 , 2019
2019
Fatigue damage analysis of fiber-reinforced polymer composites—A review
MTA Ansari, KK Singh, MS Azam
Journal of Reinforced Plastics and Composites 37 (9), 636-654 , 2018
2018
Citations: 213

MOST CITED SCHOLAR PUBLICATIONS

Fatigue damage analysis of fiber-reinforced polymer composites—A review
MTA Ansari, KK Singh, MS Azam
Journal of Reinforced Plastics and Composites 37 (9), 636-654 , 2018
2018
Citations: 213
Fatigue life and damage evolution in woven GFRP angle ply laminates
KK Singh, MTA Ansari, MS Azam
International Journal of Fatigue 142, 105964 , 2021
2021
Citations: 67
On the dispersion and experimental investigation on transverse tensile low-cycle-fatigue behaviour of GFRP nanocomposites filled with CNTs and GNPs
MTA Ansari, KK Singh, A Gaurav, AK Mishra, SK Chaudhary
International Journal of Fatigue 167, 107366 , 2023
2023
Citations: 18
Effect of small ply angle variation in tensile and compressive strength of woven GFRP composite: Application of two parameter Weibull distribution
SK Ray, KK Singh, MTA Ansari
Materials Today: Proceedings 33, 5295-5300 , 2020
2020
Citations: 11
Effect of ply lay up sequence on interlaminar shear strength of symmetric and asymmetric GFRP composite
D Kumar, KK Singh, MTA Ansari
Materials Today: Proceedings 22, 2241-2246 , 2020
2020
Citations: 10
Effect of fabric areal density on the mechanical behaviour of symmetric and asymmetric woven GFRP composite
MTA Ansari, KK Singh, MS Azam
Materials Today: Proceedings 33, 5649-5652 , 2020
2020
Citations: 10
Reliability analysis of angle ply woven GFRP composite under in-plane loading condition using two parameter Weibull distribution
KK Singh, R Shanmugam, MTA Ansari, A Gaurav
Materials Today: Proceedings , 2023
2023
Citations: 8
Observations of fatigue damage development in woven glass fiber-reinforced polymer composite using transmission light photography technique
MTA Ansari, KK Singh, MS Azam
Polymers and Polymer Composites 30, 09673911221101300 , 2022
2022
Citations: 7
Effect of stacking sequence and fiber volume fraction on the static mechanical properties of woven GFRP Composite
MTA Ansari, KK Singh, MS Azam
Trends in Materials Engineering: Select Proceedings of ICFTMM 2018, 51-58 , 2019
2019
Citations: 7
Influence of fabric areal density in woven GFRP laminate on abrasive water jet drilling responses
RK Thakur, KK Singh, MTA Ansari
Materials and Manufacturing Processes 38 (9), 1119-1129 , 2023
2023
Citations: 6
Fatigue life assessment of GFRP composite laminate under axial and transverse fatigue loading
N Sharma, KK Singh, MTA Ansari
Materials Today: Proceedings , 2023
2023
Citations: 6
Effect of ply stacking and fiber volume fraction on ILSS of woven GFRP laminates
MTA Ansari, KK Singh, MS Azam
Proceedings of International Conference in Mechanical and Energy Technology … , 2020
2020
Citations: 2
Three-point bending behavior of angle-ply GFRP laminates under static and LCF loading: Experimental and statistical analysis
MTA Ansari, KK Singh, A Gaurav
Journal of Reinforced Plastics and Composites, 07316844251390976 , 2025
2025
The effects of small fibre misalignment on the mechanical properties of GFRP laminates: An experimental assessment
SL Daura, Shubham, KK Singh, MTA Ansari, RK Thakur, A Gaurav, ...
AIP Conference Proceedings 3178 (1), 080004 , 2024
2024
Mechanical Properties of Woven GFRP Composite
MTA Ansari, KK Singh, MS Azam
Trends in Materials Engineering: Select Proceedings of ICFTMM 2018, 51 , 2019
2019

Md Touhid Alam Ansari

RESEARCH, TEACHING, or OTHER INTERESTS

Scopus Publications

RECENT SCHOLAR PUBLICATIONS

MOST CITED SCHOLAR PUBLICATIONS