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Predicting the stiffness of composite leaf spring accurately is the key to improve vehicles' performance. In this paper, a stiffness prediction model which is based on composite mechanics and energy method is proposed. Influence of un-coincident between neutral layer and middle of the thickness of each rectangular cross-section is considered. Calculation based on finite element method, existing theoretical method and bench test are carried out. Compared with these results, the model proposed in this paper can predict stiffness accurately. Besides, influences parameters are analyzed. The proposed model has a certain guiding significance for the lightweight of vehicles.Communicated by Corina Sandu.
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Yang et al. (2019) studied this question.
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