This paper presents a method to predict the design allowable for composite laminates subjected to a tensile load with finite element analysis. The mechanical properties were obtained by conducting tensile and compressive lamina tests. The statistically-based properties were acquired using an in-house tool to calculate the design allowable. A tensile load was imposed on the FE model of the laminate, and each ply stress was compared to the design allowable of the lamina test. The load was considered as the failure load when the ply stress reached the allowable value. This load was applied to a laminate model to perform finite element analysis, and the laminate strength was calculated. The calculated strength and design allowable of the laminate were compared, and as a result, the difference between the results of analysis and test was found to be within 10%.

The vehicle-mounted radar system (VMRS) including its electronic parts must be designed so that its performance is maintained under varying environmental conditions. The important aspects are typically weight and safety. Since many rotating VMRSs have been developed, discussion about the vibration and shock requirements for the transportation conditions has occurred: in addition, the dynamic unpaved, paved, and off-road effects have been emphasized with respect to lightweight designs. A lightweight-design VMRS should be capable of operating stably under the wind condition with the support of the vehicle structure. In this paper, a structural analysis regarding the support of the VMRS is performed, whereby the real-load conditions for three types of road and pressure were employed in terms of the wind condition. The structural analysis for the safety of the VMRS is performed, and the structural-integrity analytical processes of the VMRS are presented for different load conditions.