Nonlinear Wave Motion: Complexity and Simplicity Revisited

Engelbrecht, Jüri; Salupere, Andrus; Peterson, Pearu

doi:10.1007/978-94-011-4229-8_3

Cited by 1 publication

(1 citation statement)

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“…A stress wave is a state that enters another state at a finite speed and belongs to a type of disturbance wave without giving the medium as a whole any permanent displacement [39,40]. Therefore, waves can occur in media in which energy can be stored in both kinetic and potential forms [11].…”

Section: Stress Wave Propagation Equation In Metalmentioning

confidence: 99%

Analysis of Dynamic Response Behavior of Crack under Impact Stress Wave

Peng

Liu

Wei

2021

Metals

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The structural parts of construction machinery mostly fail due to impact load, but current research on the failure behavior of the impact load has not established a complete theoretical system. Based on wave theory and fracture mechanics, this paper analyzed the wave behavior of shock stress waves and established a model of shock stress wave propagation. Given the dynamic response behavior of the stress and strain field at the crack tip, dynamic fracture mechanics theory was used to solve the dynamic fracture strength stress factor and evaluate the dynamic fracture performance of the structure with crack damage under shock waves. Through dynamic response analysis and numerical calculation of the typical SHPB (split Hopkinson pressure bar) test standard compact tension (CT) specimens under the short-term strong shock stress wave, the stress and strain evolution law of the material under the shock wave was analyzed, and the correlation of the shock stress wave was verified. This research work can meet the requirements of engineering design and has practical engineering significance, playing an important role in material safety design.

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Section: Stress Wave Propagation Equation In Metalmentioning

confidence: 99%