Md Touhid Alam Ansari
@iitb.ac.in
Project Research Scientist , Department of Aerospace Engineering
IIT BOMBAY
RESEARCH, TEACHING, or OTHER INTERESTS
Materials Science, Mechanical Engineering, Ceramics and Composites, Mechanics of Materials
11
Scopus Publications
276
Scholar Citations
6
Scholar h-index
4
Scholar i10-index
Scopus Publications
- 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, Anand Gaurav, and R. Sankar
AIP Publishing - 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, and Sunil Kumar Chaudhary
Elsevier BV - Influence of fabric areal density in woven GFRP laminate on abrasive water jet drilling responses
Raju Kumar Thakur, Kalyan Kumar Singh, and Md. Touhid Alam Ansari
Informa UK Limited
ABSTRACT 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, and Mohammad S Azam
SAGE Publications
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, and Md. Sikandar Azam
Elsevier BV - Effect of fabric areal density on the mechanical behaviour of symmetric and asymmetric woven GFRP composite
Md Touhid Alam Ansari, Kalyan Kumar Singh, and Md Sikandar Azam
Elsevier BV - 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, and Md Touhid Alam Ansari
Elsevier BV - Effect of Ply Stacking and Fiber Volume Fraction on ILSS of Woven GFRP Laminates
Md. Touhid Alam Ansari, K. K. Singh, and Md. Sikandar Azam
Springer Singapore - Effect of Stacking Sequence and Fiber Volume Fraction on the Static Mechanical Properties of Woven GFRP Composite
Md. Touhid Alam Ansari, K. K. Singh, and Md. Sikandar Azam
Springer Singapore - Effect of Ply Lay Up Sequence on Interlaminar Shear Strength of Symmetric and Asymmetric GFRP Composite
Dilip Kumar, K.K Singh, and Md Touhid Alam Ansari
Elsevier BV - Fatigue damage analysis of fiber-reinforced polymer composites—A review
Md. Touhid Alam Ansari, Kalyan Kumar Singh, and Mohammad Sikandar Azam
SAGE Publications
Fiber-reinforced polymer composites are becoming suitable and substantial materials in the repair and replacement of conventional metallic materials because of their high strength and stiffness. These composites undergo various types of static and fatigue loads during service. One of the major tests that conventional and composite materials have to experience is fatigue test. It refers to the testing for the cyclic behavior of materials. Composite materials are different from metals, as they indicate a distinct behavior under fatigue loading. The fatigue damage and failure mechanisms are more intricate in composite materials than in metals in which a crack initiates and propagates up to fracture. In composite materials, several micro-cracks initiate at the primary stage of the fatigue growth, resulting in the initiation of various types of fatigue damage. Fiber volume fraction is an important parameter to describe a composite laminate. The fatigue strength increases with the increase of the fiber volume fraction to a certain level and then decreases because of the lack of enough resin to grip the fibers. The fatigue behavior of fiber-reinforced polymer composites depends on various factors, e.g., constituent materials, manufacturing process, hysteresis heating, fiber orientation, type of loading, interface properties, frequency, mean stress, environment. This review paper explores the effects of various parameters like fiber type, fiber orientation, fiber volume fraction, etc. on the fatigue behavior of fiber-reinforced polymer composites.
RECENT SCHOLAR PUBLICATIONS
- The effects of small fibre misalignment on the mechanical properties of GFRP laminates: An experimental assessment
SL Daura, S Shubham, KK Singh, MTA Ansari, RK Thakur, A Gaurav, ...
AIP Conference Proceedings 3178 (1) 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 - Fatigue life assessment of GFRP composite laminate under axial and transverse fatigue loading
N Sharma, KK Singh, MTA Ansari
Materials Today: Proceedings 2023 - 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 - 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 - 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 - In Journals
KK Singh, MT Ansari, MS Azam
Journal of Structural Stability and Dynamics 21 (05), 2150062 2021 - Fatigue life and damage evolution in woven GFRP angle ply laminates
KK Singh, MTA Ansari, MS Azam
International Journal of Fatigue 142, 105964 2021 - 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 - 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 - 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 - 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 - Mechanical Properties of Woven GFRP Composite
MTA Ansari, KK Singh, MS Azam
Trends in Materials Engineering: Select Proceedings of ICFTMM 2018, 51 2019 - 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 - 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
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
Citations: 162 - Fatigue life and damage evolution in woven GFRP angle ply laminates
KK Singh, MTA Ansari, MS Azam
International Journal of Fatigue 142, 105964 2021
Citations: 53 - 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
Citations: 13 - 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
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
Citations: 7 - 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
Citations: 6 - 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
Citations: 6 - 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
Citations: 5 - 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
Citations: 4 - 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
Citations: 4 - In Journals
KK Singh, MT Ansari, MS Azam
Journal of Structural Stability and Dynamics 21 (05), 2150062 2021
Citations: 4 - 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
Citations: 1