Abstract

The problem of negative shear lag in a cantilever beam subjected to a uniform load is explained in nonmathematical terms. In essence, the problem is one of two components (uniform-load component and concentrated reaction component), each of which is subjected to positive shear lag, being combined such that negative shear lag is produced. The key ingredient for negative shear lag is that the predominant component dampen faster than the less predominant component. This explanation is confirmed by using the folded-plate method to study an example problem.

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