Results 71 to 80 of about 57,485 (211)

On a damage-plasticity approach to model concrete failure

open access: yes, 2009
A damage-plasticity constitutive model for the description of fracture in plain concrete is presented. Two approaches, the local model comprising the adjustment of the softening modulus and the nonlocal model based on spatial averaging of history ...
Grassl, Peter
core   +1 more source

Variation of Magnetic Memory Signals in Fatigue Crack Initiation and Propagation Behavior

open access: yesMetals, 2019
To monitor fatigue crack initiation and propagation, and to judge the fatigue damage status of ferromagnetic material, fatigue bending tests of four-point single edge notch bend (SENB4) specimens were carried out.
Wei Zhou   +3 more
doaj   +1 more source

Re-examination of cumulative fatigue damage analysis: An engineering perspective [PDF]

open access: yes
A method which has evolved in our laboratories for the past 20 yr is re-examined with the intent of improving its accuracy and simplicity of application to engineering problems.
Halford, G. R., Manson, S. S.
core   +1 more source

A finite element strategy coupling a gradient-enhanced damage model and cohesive cracks for quasi-brittle materials [PDF]

open access: yes, 2013
A new combined strategy to describe failure of quasi-brittle materials is presented thus allowing the complete description of the process, from initiation of damage to crack propagation.
Rodríguez Ferran, Antonio   +1 more
core  

Structural reliability analysis of laminated CMC components [PDF]

open access: yes, 1991
For laminated ceramic matrix composite (CMC) materials to realize their full potential in aerospace applications, design methods and protocols are a necessity.
Duffy, Stephen F.   +2 more
core   +2 more sources

Analysis of damage and fracture mechanisms in ductile metals under non-proportional loading paths [PDF]

open access: yes, 2019
The paper discusses biaxial experiments and corresponding numerical simulations to analyze the effect of non-proportional loading paths on damage and fracture behavior of ductile metals.
Brünig, Michael   +2 more
core  

Embedded discontinuities for softening solids [PDF]

open access: yes, 1999
Additional, discontinuous functions are added to the displacement field of standard finite elements in order to capture highly localised zones of intense straining.
Sluys, LJ, Wells, GN
core  

Micro-damage model of gas-bearing coal under load and instability identification criteria

open access: yesMeitan xuebao
The distribution of pores and skeletons within coal reservoirs significantly affects the migration of gases and the occurrence of gas dynamic disasters. To further explore the micro-damage mechanisms in gas-containing coal, a detailed study of the micro ...
Baisheng NIE   +10 more
doaj   +1 more source

FINITE ELEMENT STUDY OF VOID BEHAVIOR UNDER LOW STRESS TRIAXIALITY

open access: yesJixie qiangdu, 2017
Based on finite element simulation,a 3D cell model subjected to low stress triaxiality,with a spherical void located in center was developed. The distribution rule of stress and strain was investigated,as well as the developing trend of volume of void ...
LIU MeiMei, CHEN JianJun, PAN HongLiang
doaj  

Home - About - Disclaimer - Privacy