tailieunhanh - A new approach for investigation of damage zone properties in orthotropic materials

In the present study, a new approach “damaged zone simulation (DZS)” is proposed based on the experimental and numerical data, for investigating the orthotropic damaged zone properties. Comparison with existing analytical data shows the capabilities of the presented approach. | A new approach for investigation of damage zone properties in orthotropic materials Engineering Solid Mechanics 2 2014 283-292 Contents lists available at GrowingScience Engineering Solid Mechanics homepage esm A new approach for investigation of damage zone properties in orthotropic materials Mahdi Fakoora Mohammad Hossein Sabourb and Nabi Mehri Khansaric a Assistant Professor Faculty of New Sciences and Technologies University Of Tehran Tehran Iran b Assistant Professor Faculty of New Sciences and Technologies University Of Tehran Tehran Iran c . student Faculty of New Sciences and Technologies University Of Tehran Tehran Iran ARTICLE INFO ABSTRACT Article history Fracture phenomenon in orthotropic materials generally associates with region called Received March 6 2014 damaged zone in crack tip vicinity. In quasi-brittle materials this area is known as fracture Accepted 23 August 2014 process zone FPZ . This area contains a multitude of microcracks which cause difficulties in Available online analytical process of the region. Also energy waste in damaged zone can affect the material 24 August 2014 Keywords fracture properties. The characteristics of damaged zone should be considered to figure out the Damaged Zone residual strength of composite materials. It also can help to predict the value or even the Orthotropic direction of crack growth of orthotropic materials. So far several efforts have been made to Mechanical Properties determine the mechanical properties of this region but none of them due to the immense Numerical Method complexity of this region can express the behavior of this region properly. Moreover previous Experimental Method approach has not been verified by new experimental and numerical results yet. In the present study a new approach damaged zone simulation DZS is proposed based on the experimental and numerical data for investigating the orthotropic damaged zone properties. Comparison with existing analytical data