Mechanics of Solids

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Questions related to Mechanics of Solids

Why metal surfaces rubbed against each other squeaks? How to model the frequency spectrum of that sound?

some metal surfaces, rubbed against each other squeaks in a shrilling high frequency. Why? What is the role of surface roughness, friction factor, geometric shape, stress distribution,solid and...

01 January 2020 1,886 1 View

Why metal surfaces rubbed against each other squeaks? How to model the frequency spectrum of that sound?

some metal surfaces, rubbed against each other squeaks in a shrilling high frequency. Why? What is the role of surface roughness, friction factor, geometric shape, stress distribution,solid and...

01 January 2020 2,631 1 View

What works would have earned a Nobel Prize in Physics in solid mechanics?

The mechanics of solids (solids with defects) has had a considerable development since the time of Gebbia, Volterra, Somigliana ... (a century and 1/4, approximately). Can we, in order of...

10 October 2019 10,076 2 View

How to find the large deflection profile of buckled beam fixed at both ends, due to compressive forces?

Timoshenko has derived for the large deflection in the case of beam fixed at one end and free at the other end (image attached). Where in the length of the buckled beam is found by integrating...

08 August 2019 3,108 2 View

What is the difference or advantage of the different SPH formulations (XSPH, NSPH) in Abaqus?

Hi all, as described in the question, i would like to know what are the main differences or advantages of the different SPH formulations in Abaqus? Especially for solids simulations. Thanks a...

10 October 2018 977 0 View

How to simulate solids (e.g. Steel) with the SPH-Method in Abaqus?

Hi all, i want to simulate a compression and tension (with tensile instability control) of a cube (steel) with the SPH-Method in Abaqus. Unfortunately i don´t get the same results compared to the...

10 October 2018 7,028 3 View

What is the best physically based constitutive model for analyzing the deformation pattern of semi-solid materials?

Up to now, many constitutive models were proposed for semi-solid deformation. However, some aspects of the deformation mechanisms are confusing. For example, what is the main breakdown mechanism...

10 October 2018 1,000 1 View

Which plane of isotropy is considered to study a Transversely isotropic Cylinder whose length is given?

For studying the transversely isotropic elastic behaviour of cylindrical structures of a given length, subjected to radial and axial pressure simultaneously, which plane of isotropy will be...

08 August 2018 3,844 4 View

Can you please suggest books to learn about impacts, collisions, shock waves, failure...?

Hi all, have basic knowledge of mechanics of solids however I am unaware of books in the area of impacts and its modelling. Can you please suggest books to learn about impacts, collisions, shock...

06 June 2018 8,467 2 View

Help regarding 3D crack growth analysis in APDL?

I am working on a project regarding the crack growth analysis of the pelton runner with the crack being at it's root. APDL tutorials provide solution to 2D examples and i'm not sure how should i...

05 May 2018 7,315 0 View

Help regarding an XEFM based stationary crack growth analysis code in ANSYS APDL?

'yc = 0.0 xc = 5.0 nsel, s, loc, x, 0 , xc esln,s, esel, r, cent, y, -1e-3, 1e-3 cm, cenelem, elem nelem = 1000 iel = 0 Phi = 0.0 Psi = 0.0 *do, i, 1, nelem, 1 iel = elnext(iel) *if, iel,...

05 May 2018 744 0 View

Is modulus of rigidity which is also refered to as shear modulus G different in different directions?

Gxy, Gyz, Gzx are different or they are all the same and my notation makes no sense for a given material.

08 January 2018 3,981 7 View

Is modulus of rigidity which is also refered to as shear modulus G different in different directions?

Gxy, Gyz, Gzx are different or they are all the same and my notation makes no sense for a given material.

01 January 2018 1,176 8 View

What is the advantage of hexahedral mesh over tetrahedral elements in finite element analysis using structural analysis?

Some times tetrahedral mesh is better and some times hexahedral mesh elements are approximate the material in better way. I want to know the conditions. Advantages and disadvantages of these type...

11 November 2017 2,446 10 View

Which is the best zone to provide lapping in columns and beams?

Where can we provide lapping of bars in columns and beams so that they can able to form moment resting frames!!

13 July 2017 2,454 3 View

Which is the best zone to provide lapping in columns and beams?

Where can we provide lapping of bars in columns and beams so that they can able to form moment resting frames!!

07 July 2017 8,660 3 View

Is there any difference between the FE results of a steel material under monotonic load for two different hardening models (isotropic and kinematic)?

In order to model steel material in finite element software, different types of hardening plasticity can be used. Using these methods lead to different response when the material undergoes cyclic...

07 June 2017 5,519 5 View

Mohammad Hajiazizi

Congratulation for publishing of your paper entitled "An element-free Galerkin approach for rigid–flexible coupling dynamics in 2D state". I was as a reviewer on your paper.

06 June 2017 779 1 View

Hyperelastic DDSDDE implementation error

I am seeking to implement a hyperelastic material whose Cauchy stress (T) is defined as:T = 2.87(3.28/det(F))2.5I where I and F are Identity and deformation gradient tensors, respectively. I have...

06 June 2017 4,328 2 View

Is anyone able to cast light on the touchstone supposed to be employed so as to handpick the best zone size and grid orientation?

"Numerical testing conditions can influence the model response for shear hardening/softening behavior. The rate of loading can introduce inertial effects. The results are also grid-dependent....

06 June 2017 4,692 0 View

Is there any difference between the FE results of a steel material under monotonic load for two different hardening models (isotropic and kinematic)?

In order to model steel material in finite element software, different types of hardening plasticity can be used. Using these methods lead to different response when the material undergoes cyclic...

06 June 2017 9,592 5 View

Why the strenght of Chamfered cutout is greater than a filleted cutout?

I have done an analysis in which I have obtained the above-mentioned results.

06 June 2017 7,589 0 View

For plastics/polymers, is there any standard for the determination of the degradation of material due to freeze-thaw cycles?

There is a standard for concrete materials but I am not able to find a standard for plastics/polymers.

06 June 2017 916 0 View

What is the best element type to model kinetic sand in ANSYS Mechanical?

I am modeling a 3-layered beam structure where the outer layers are from aluminium while the core is kinetic sand. I will be doing harmonic analysis. I need a way to model this nonlinear material,...

05 May 2017 6,754 0 View

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