Computer simulation of the motion of the bullet belt of airplane gun

The crack line analysis method is used to obtain the near-crack-surface stress field of a mode III crack loaded by a pair of anti-plane point forces in an elastic-perfectly plastic material, which expands the research method from the crack line region to the crack surface region. The stresses in the plastic region, the length of the plastic region, and the geometry of the elastic-plastic boundary near the surface area of the crack are obtained analytically. Further, the maximum value of size of the plastic region along the surface of the crack is obtained. The results are sufficiently precise near the surface area of the crack, as the usual small-scale yielding condition has been given up in the analysis.

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Stress Field Analysis of Mode II Periodic Cracks-Tip

Zhang

et al. 2011

AMR

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The cracks-tip field on ModeⅡperiodic cracks of infinite orthotropic fiber reinforcement composite plate subjected to the concentrated force was studied. With the introduction of the Westergaard stress function and application of complex function theory and undetermined coefficients method, mechanical problem is changed into partial differential boundary value problem. Owing to the distribution of periodic cracks, stress intensity factor(SIF) depends on the shape factor, which is greatly influenced by the crack spacing and the crack length. The results show that interaction happens between the periodic cracks, and that scale effect of the stress intensity factor in cracks-tip is obvious.

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Computer simulation of the motion of the bullet belt of airplane gun

Abstract: With the dynamic theory of multi-rigidbody systems, first this paper establishes the mathematical model of dynamics and impact dynamics of the bullet belt of airplane gun, and then it carries out the numerical and graphic simulation of the motion oj" the bullet belt by way of computer.

Cited by 3 publications

References 1 publication

Vibration Behavior Analysis of the Ammunition Belt of the Gas-Operated Machine Gun

Vibration Behavior Analysis of the Ammunition Belt of the Gas-Operated Machine Gun

Elastic-plastic analysis near the crack surface region on a mode III crack under a pair of point forces

Stress Field Analysis of Mode II Periodic Cracks-Tip

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