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Questions related from Hassan Iftekhar
I am well aware of the definitions of Kinematics and Kinetics. I have a simple question. I can find the location of any rigid body by simply installing sensors or using radars. What is the use of...
04 August 2023 7,233 0 View
I require few tips regarding matching the numerical model of drop weight test with the experimentally obtained data. I will briefly discuss the drop weight model here. I have modeled a drop...
03 April 2023 8,084 0 View
Attached figure is Force vs Elongation curve of Rubber. Please guide how to calculate young modulus incase of rubber? In some paper modulus at 200% and modulus at 300% is reported without...
14 September 2022 2,214 3 View
I am familiar that young modulus is the value of stress/strain. But in some papers the stress values are reported at different strains. Like modulus at 300% modulus at 200%. Please guide what is...
13 September 2022 6,481 1 View
What young modulus should we use while inputting the modulus value of material in the split hopkinson software? I have done some tensile tests on UTM as attached in figure. however the split...
13 September 2022 4,675 2 View
I want to do drop weight analysis on a composite material. As the material properties do not exist in the engineering materials. So I have to define a new material with experimental data. What...
22 May 2020 5,401 7 View
The toughness and resilience are calculated when tensile load is applied. Will a material absorb same energy when a impact load is applied such as bullet fired on the material front face? Which...
01 November 2019 5,119 2 View
I am designing a helmet impact machine. Does the accelerometer placed inside helmet and load cell placed under anvil give the same peak force value?
12 October 2019 649 3 View
A accelerometer installed inside helmet of a impact testing machine and a load cell is installed at anvil. How to convert acceleration to F and vise versa. Is F=ma? Correct?
12 October 2019 8,224 0 View
I have few questions if any one can add to it: 1. I want to run a simulation with experiments done in free surface water tunnel. Which model you think can predict good reattachment length. 2. I am...
22 November 2015 1,172 34 View
I understand that Karman Vortex street are generated in presence of blunt obstacles. But why Karman Vortex street show alternating rotating structures?
20 October 2015 5,358 2 View
How can I estimate wall shear stress using Clauser chart method as friction velocity is not constant and varies with y. I have experimental field velocity measurements.
09 September 2015 1,723 1 View
01 January 1970 8,777 3 View
