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A thermomechanical model for shape memory alloy (SMA) actuators and SMA hybrid composite (SMAHC) structures has been recently implemented in the commercial finite element codes MSC.Nastran and ABAQUS. The model may be easily implemented in any code that has the capability for analysis of laminated composite structures with temperature dependent material properties. The model is also relatively easy to use and requires input of only fundamental engineering properties. A brief description of the model is presented, followed by discussion of implementation and usage in the commercial codes. Results are presented from static and dynamic analysis of SMAHC beams of two types; a beam clamped at each end and a cantilevered beam. Nonlinear static (post-buckling) and random response analyses are demonstrated for the first specimen. Static deflection (shape) control is demonstrated for the cantilevered beam. Approaches for modeling SMAHC material systems with embedded SMA in ribbon and small round wire product forms are demonstrated and compared. The results from the commercial codes are compared to those from a research code as validation of the commercial implementations; excellent correlation is achieved in all cases.

To develop and commercialize materials containing vegetal fibers has grown in order to reduce environmental impact. Large amounts of lignocellulosic materials are generated around the world from several human activities and some process. Development of the Polymer Composites with natural fibers and fillers such as a sustainable alternative material for some applications, particularly in aerospace applications and automobile applications are being investigated. Natural fiber composites such as sisal, jute, hemp and coir polymer composites appear more attractive due to their higher specific strength, lightweight and biodegradability and low cost.

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Natural fibers have been used to reinforce materials for over 200 years. The aim of this study is to evaluate mechanical properties such as tensile and flexural properties of hybrid banana and sisal reinforced epoxy composites they have been employed in combination with plastics. Natural fibers like as hemp, jute, sisal and banana. It’s have the advantage that they are renewable resources and have marketing appeal these agricultural wastes can be used to prepare fiber The composites have many advantages over traditional glass fiber and inorganic materials. In this paper, test are conducted for composite material constitutes banana and less discovered sisal  These composites are adhered using epoxy resin consists resin and hardener suitably mixed in appropriate volume Here for preparing samples Hand layup method is used , specimens are prepared and tests are carried out , which shows tensile and bending strengths. The tensile & compressive tests were applied on specimens of 300×50×10 mm in dimensions but in different proportions of banana and sisal by weight.