Joseph C. Nadeau

Journal article ASEE Annual Conference and Exposition Conference Proceedings · January 1, 2014 Student motivation - and associated educational outcomes - can be influenced by the degree to which course material connects to recognizable societal problems. The National Academy for Engineering has established the "Engineering Grand Challenges", a set o ... Cite

A grand challenge-based framework for contextual learning in engineering

Journal article ASEE Annual Conference and Exposition Conference Proceedings · September 24, 2013 A key finding within the current engineering education literature is that exposure to real-world applications - especially when presented in an active, experiential learning environment - increases both student interest and pedagogical effectiveness. This ... Cite

Effective thermal expansion of heterogeneous materials with application to low temperature environments

Journal article Mechanics of Materials · March 1, 2004 This paper presents direct formulations of the effective thermal linear expansion (TLE) and the effective coefficient of thermal linear expansion (CTLE) of heterogeneous materials, or multi-constituent composites, with temperature dependent constituent pro ... Full text Cite

Bounds on texture coefficients

Journal article Journal of Applied Mechanics Transactions ASME · March 1, 2003 The orientation distribution function (ODF) is expanded in terms of generalized spherical harmonics and bounds on the resulting texture coefficients are derived. A necessary and sufficient condition for satisfaction of the normalization property of the ODF ... Full text Cite

A multiscale model for effective moduli of concrete incorporating ITZ water-cement ratio gradients, aggregate size distributions, and entrapped voids

Journal article Cement and Concrete Research · January 1, 2003 This paper develops a model for the effective elastic properties of concrete, which is a function of the volume fractions, size distributions, and elastic properties of fine aggregate (FA) and coarse aggregate (FA) and entrapped voids. Furthermore, the mod ... Full text Cite

On the use of effective properties for the fracture analysis of microstructured materials

Journal article Engineering Fracture Mechanics · September 1, 2002 This paper addresses some fundamental theoretical and numerical issues concerning the application of effective properties for the failure analysis of microstructured materials, with a focus on functionally graded materials. An edge-cracked square region is ... Full text Cite

Water-cement ratio gradients in mortars and corresponding effective elastic properties

Journal article Cement and Concrete Research · March 1, 2002 Water-cement ratio gradients are modeled through the interfacial transition zone (ITZ) of a mortar with spherical inclusions. The model is a function of the over-all water-cement ratio, volume fraction and radius of sand, specific gravity of cement and thi ... Full text Cite

On optimal zeroth-order bounds with application to Hashin-Shtrikman bounds and anisotropy parameters

Journal article International Journal of Solids and Structures · October 12, 2001 A new result presented in this paper is the evaluation of the Hashin-Shtrikman bounds for composites composed of arbitrarily anisotropic constituents. To date, evaluation of the Hashin-Shtrikman bounds are limited to composites with isotropic constituents ... Full text Cite

Biosorption of metal ions using chitosan, chitin, and biomass of Rhizopus oryzae

Journal article Separation Science and Technology · 2001 The biosorptive capacity of dried biomass fungus Rhizopus oryzae Went & Prinsen-Geerlings for metal sorption was compared with commercially available sources of chitin, chitosan and chitosan cross-linked with benzoquinone. Initial pH of the metal solut ... Full text Cite

On the response sensitivity of an optimally designed functionally graded layer

Journal article Composites Part B Engineering · January 1, 2000 Sensitivity of the response of an optimally designed functionally graded (FG) thermomechanical system is investigated. The system is a transversely isotropic layer subjected to a thermal gradient. The layer is modeled as a biconstituent composite with a mi ... Full text Cite

Microstructural optimization of a functionally graded transversely isotropic layer

Journal article Mechanics of Materials · January 1, 1999 Motivated by current problems in coating technology, this paper addresses the microstructural optimization of a layer which is free of tractions, transversely isotropic, infinite and subjected to a prescribed thermal gradient. The layer's microstructure is ... Full text Cite

Optimal FGMs, and plain awful composites

Journal article Materials Science Forum · January 1, 1999 The worst possible mechanical performance of a composite material of given composition is attained for a homogeneous distribution of the second phase. This conclusion is reached upon analyzing the St. Venant problem (extension, torsion, bending, flexure) f ... Full text Cite

A note on the effective lamé constants of a polycrystalline aggregate of cubic crystals

Journal article Journal of Applied Mechanics Transactions ASME · January 1, 1999 Full text Cite

Invariant Tensor-to-Matrix Mappings for Evaluation of Tensorial Expressions

Journal article Journal of Elasticity · January 1, 1998 A class of mappings is presented, parameterized by a variable η, that operates on tensorial expressions to yield equivalent matrical expressions which are then easily evaluated, either numerically or symbolically, using standard matrix operations. The tens ... Full text Cite

Microstructural optimization of a functionally gradient layer

Journal article American Society of Mechanical Engineers Materials Division Publication MD · December 1, 1997 This paper addresses the microstructural optimization of an infinite, transversely isotropic layer which is free of tractions and subjected to a prescribed thermal gradient. The layer's microstructure is characterized as a bi-phase composite in the form of ... Cite

Second-rank equilibrium and transport properties of fibrous composites: Effective predictions and bounds

Journal article Composites Engineering · January 1, 1995 A direct approach to the evaluation of the effective permeability, permittivity and transport properties of an arbitrary composite is presented in terms of gradient and flux-density concentrators. A set of requirements are presented, which are imposed on t ... Full text Cite

Singular boundary integral equation formulation for the non-dilute equivalent eigenstrain problem

Journal article American Society of Mechanical Engineers Petroleum Division Publication PD · December 1, 1993 This note addresses the problem of determining the elastic field in an homogeneous isotropic body undergoing a spatially constant eigenstraining process in a non-dilute concentration of internal regions. The relation of this to the elastic boundary value p ... Cite