DOWEL – A Software to Simulate Dowel-Type Connectors in Wood or Other Materials

The DOWEL program is a finite-element modeler for dowel-type connections (e.g. nails, bolts, lag screws) in wood-wood, wood-steel or any other type of connection material configuration. The underlying model has even been used for pile modeling in soil. It calculates load-displacement curves for monotonic and cyclic loading applictions and plots deformed shapes at predefined displacement steps. Material inputs consist of basic material embedment data. All material data is stored in a database that can be appended by the user.

Monotonic and Cyclic Behaviour of Slender Dowel-Type Fasteners in Wood-Steel-Wood Connections

The objective of this study was to investigate the monotonic and cyclic behaviour of different kinds of slender dowel-type fasteners. To accomplish this, four types of fasteners were tested in a series of 73 monotonic and cyclic tests. All tests used either one or two slotted-in steel plates in PARALLAM®, a Parallel Strand Lumber (PSL) product.

Genetic Algorithm Optimization for MS Excel

This program allows the user to take an Excel spreadsheet with any type of calculation data (no matter how complex) and optimize a calculation outcome (e.g. total cost) using a Genetic Algorithm approach. Genetic algorithms (GAs) are based on biological principles of evolution and provide an interesting alternative to “classic” gradient-based optimization methods.

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