Hamed Sadaghian

8 Questions 112 Answers 0 Followers

Questions related from Hamed Sadaghian

What is the best software to design and simulate metamaterials for various applications?

Software such as Mirage, Remcom's XFdtd software, OmniSim, etc. exists. but which one is the best for various purposes, for example thermal simulation, acoustic simulation, structural analysis...

19 October 2022 1,657 5 View

What are common stress/strain levels in fatigue loading of 3D-printed polymers/plastics?

Hi everyone. There seems to be no specific standard for the fatigue loading of 3D-printed polymers/plastics and researchers use the most relevant standards from ASTM or ISO for polymers....

15 September 2022 1,468 0 View

Is there a unified method other than ASTM C1683 for size effect in direct tension?

Dear All, Is there any standard methodology to account for the size effect phenomenon observed in materials such as concrete other than ASTM C1683? Best Regards, Hamed

01 November 2021 6,058 2 View

Any references concerning the temperature-dependent variation of thermal strain in FRP polymers?

Dear all, I hope this message finds you well. Given that thermal strain of FRP polymers (i.e., GFRP, CFRP, BFRP, and AFRP) vary notably at elevated temperatures in longitudinal and transverse...

17 March 2021 2,766 4 View

Thermal and mechanical properties of concrete and steel after cooling?

How do the thermal conductivity, specific heat capacity, plastic strain, critical compressive displacement, and thermal expansion of both hot-rolled steel and concrete change after cooling based...

16 February 2021 1,575 5 View

Cross-sectional area and mesh sensitivity in lattice modeling of RC structural elements?

In lattice modeling of RC structures, what is the mathematical concept behind choosing the cross-sectional areas for the simulation of, for instance, beams? Besides, seemingly, simulating the...

27 January 2021 2,828 2 View

Fracture energy of concrete at sub-zero temperatures?

Both tensile and compressive strengths of concrete increase with the decrease in temperature. With this in mind and considering that fracture energy is in direct correlation with the so-called...

19 January 2021 8,925 4 View

Why the fracture energy of concrete increases with the rise in temperature?

Given the degradation of mechanical properties in concrete under elevated temperature namely, tensile strength, modulus of elasticity, compressive strength, etc., what is the justification behind...

16 January 2021 3,789 4 View