丰富
发表于 2025-3-23 10:40:27
Testing viscous soft materials at medium and high strain rates,he behaviour of soft viscous materials. Those results concern the use of Hopkinson bars: -. the waves’ dispersion correction for viscoelastic 3D bars; -. inverse calculation methods that are needed for the analysis of the results of transient tests when the hypothesis of homogeneity in the specimen
绊住
发表于 2025-3-23 17:52:02
High strain rate constitutive relationships for semi-crystalline polymers using a combined numerica be resistant to rapid crack propagation. The data which includes stress/strain results over a strain rate range 10. to 10. s. and a temperature range −20 to 20°C are fairly well described by the Eyring relationship, even though wave propagation effects should be accounted for at high strain rates.
6Applepolish
发表于 2025-3-23 20:41:40
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辞职
发表于 2025-3-23 22:41:48
Strain Rate Sensitivity of Flow Stress at Very High Rates of Strain,train rate change tests were conducted. The strain rate reduction test was made for polycrystalline aluminium, copper, iron and niobium at strain rates up to about 2×10./sec. The measurement of the attenuation of the ultrasonic pulse superimposed upon the dynamic plastic deformation, a kind of strai
Celiac-Plexus
发表于 2025-3-24 03:39:10
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神圣将军
发表于 2025-3-24 06:54:05
A Strain-Rate and Temperature Dependent Constitutive Model with Unified Sets of Parameters for Varis been developed. In the present model, a hyperbolic relationship between quasistatic yield stresses and gradients of normalized strain rate sensitivity is assumed for the thermally activated mechanism, while a strain-rate power-law equation is employed for the viscous drag mechanism. Temperature de
多嘴
发表于 2025-3-24 11:02:19
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Chauvinistic
发表于 2025-3-24 15:39:02
Loss of localization at high crack speeds,ize determined by an intrinsic length parameter of the material was lost at a very high crack speeds . A few years later several experimental results appeared, giving indirect support for such a loss by showing lack of a unique relation between stress intensity factor or surface roughness and cra
开始没有
发表于 2025-3-24 19:41:18
Dynamic Fracture Toughness and Crack Propagation in Brittle Material,ip between .., and crack velocity .. is associated to the characteristic appearance on the fracture surface. Periodic patterns are observed on the fracture surface which suggest local oscillation of crack velocity. A model for analyzing crack propagation by global energy equilibrium concept is propo
恶意
发表于 2025-3-25 00:09:27
On the Behavior of Crack Surface Ligaments,ents. These ligaments are assumed to be formed between the areas fractured in cleavage. The tearing is studied both numerically and experimentally. An elastic visco-plastic material model is adopted for finite element calculations. The results show that relatively large amounts of energy are consume