Results 121 to 130 of about 23,173 (239)

A damage-plasticity model for the dynamic failure of concrete

open access: yes, 2011
A constitutive model based on the combination of damage mechanics and plasticity is developed to analyse concrete structures subjected to dynamic loading. The aim is to obtain a model, which requires input parameters with clear physical meanings.
Grassl, Peter   +3 more
core  

Research on a risk prediction model of gear tooth flank fracture based on multiaxial stress fatigue criterion

open access: yesJixie chuandong
ObjectiveTooth flank fracture is a contact fatigue failure mode of high-cycle/ultra-high-cycle fatigue damage where cracks initiate due to material damage at deep locations inside the tooth.
WANG Xiaopeng   +6 more
doaj  

Determination of surfaces of constant inelastic strain rate at elevated temperature [PDF]

open access: yes
An experimental effort to perform special exploratory multiaxial deformation tests on tubular specimens of type 316 stainless steel at 650 C (1200 F) is described. One test specimen was subjected to a time-independent torsional shear strain test history,
Ball, S. J., Battiste, R. L.
core   +1 more source

The relationship between observed fatigue damage and life estimation models [PDF]

open access: yes
Observations of the surface of laboratory specimens subjected to axial and torsional fatigue loadings has resulted in the identification of three damage fatigue phenomena: crack nucleation, shear crack growth, and tensile crack growth.
Kurath, Peter, Socie, Darrell F.
core   +1 more source

Multiaxial Cyclic Thermoplasticity Analysis with Besseling's Subvolume Method [PDF]

open access: yes
A modification was formulated to Besseling's Subvolume Method to allow it to use multilinear stress-strain curves which are temperature dependent to perform cyclic thermoplasticity analyses.
Mcknight, R. L.
core   +1 more source

Theoretical and numerical modelling of creep crack growth in a carbon-manganese steel [PDF]

open access: yes, 2006
Bassani   +22 more
core   +1 more source

Design of ceramic components with the NASA/CARES computer program [PDF]

open access: yes
The ceramics analysis and reliability evaluation of structures (CARES) computer program is described. The primary function of the code is to calculate the fast-fracture reliability or failure probability of macro-scopically isotropic ceramic components ...
Gyekenyesi, John P.   +2 more
core   +1 more source

Development and mechanical properties of construction materials from lunar simulants [PDF]

open access: yes
The development of construction materials such as concrete from lunar soils without the use of water requires a different methodology than that used for conventional terrestrial concrete. Currently, this research involves two aspects: (1) liquefaction of
Desai, Chandra S.
core   +1 more source

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