The mixed mode fracture mechanics in a hole plate bonded with two dissimilar plane

Subject Areas : Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

محمد رحیم ترشیزیان ¹ , حسین اندرزجو ²

1 - استادیار،گروه مکانیک، واحد مشهد، دانشگاه آزاد اسلامی، مشهد،ایران.
2 - کارشناس ارشد، گروه مکانیک، واحد مشهد، دانشگاه آزاد اسلامی، مشهد،ایران.

Received: 2016-10-13 Accepted : 2017-01-28 Published : 2016-07-22

Keywords: Stress intensity factor, Mixed mode fracture, hole-edge cracks, Franc software, Casca software,

Abstract :

In the present research, the mixed-mode fracture mechanics analysis in a plate with central hole under tensile loading is considered. It is assumed that a plate containing two symmetrical hole-edge cracks is bonded with two dissimilar planes. The stress intensity factors at the crack tips are calculated. The problem is modeled in Casca software and this model is analyzed with Franc software. The effects of various factors such as hole diameter, crack length, angle of crack and material properties of plates have been investigated on stress intensity factors. The stress intensity factors increases with increasing crack length. Also, the stress intensity factors increases with the increase of hole diameter. For a certain amount of for small crack lengths the effect of cracks length on variation of stress intensity factors is more than the hole diameter but for large crack lengths the effect of hole diameter on variation of stress intensity factors is more than the cracks length.

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