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The application of virtual simulations of crash has become an integral part of the vehicle development process. Virtual simulation offers opportunities to reduce development time and the number of physical prototypes consumed for design verification and validation. With the continuously increase of new accident and regulatory scenarios the dependency to virtual simulation and validation is becoming an inseparable factor in product development. This paper presents simulations that are performed to verify various safety aspects to ensure crashworthiness of the truck cabin. The cabin structure was evaluated for various load cases as per ECER 29 rev 2.0 safety regulation [1]. The FE model and simulation methodology was validated through physical testing and correlated for frontal impact test and roof strength test as per AIS 029/ECE-R 29 rev 2.0 [2]. Paper also discuss on the issue faced in correlation of test vs. Virtual validation using explicit solver.

CAE based methodologies for structural analysis has improved considerably and is now commonly used for product development. This methodology can also be used effectively for certification of products against safety standards requiring structural performance. Use of CAE can address the issue of certifying a large number of product variants without the need of expensive and destructive physical tests. The probability and variation in rollover accident varies with different bus application. This paper discuss on the major change in the requirement between flat rollover with the convention rollover over 800mm ditch. It also discusses on the severity of rollover in both rollover scenarios for intercity applications using simulation techniques.