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  • Determination of cohesive parameters for aerospace adhesives

    Creator:
    Hortnagl, Josef G.
    Abstract:
    The use of adhesives in demanding engineering applications is a very common occurrence in the modern world. These adhesives are taking the role of many traditional fasteners, especially in the area of fiber reinforced composites. As the use of these adhesives become more common place, better understanding of their mechanics...
    Resource Type:
    Masters Thesis
    Full Text:
    developed standardized material property testing procedures to help predict adhesive joint limitations

  • Model for the prediction of nail withdrawal stiffness

    Creator:
    Atherton, Jon C.
    Abstract:
    An important factor affecting the strength and ultimate load of wood structures is the strength, stiffness and durability of its joints. Therefore, the behavior of nailed joints must be given proper consideration when designing and analyzing wood structures. Presently,formulas for determining the strength of nailed joints under withdrawal loads, as...
    Resource Type:
    Masters Thesis
    Full Text:
    driven into the wood medium. Joint properties are usually evaluated by testing. To reduce testing

  • Effective Bonding Parameters for Hybrid Cross-Laminated Timber (CLT)

    Creator:
    Larkin, Blake
    Abstract:
    Cross-laminated timber (CLT) is a massive engineered wood product made of orthogonally bonded layers of solid-sawn lumber, and is intended for roof, floor, or wall applications. Although it was developed in Europe in the early 90s, CLT is relatively new to North America. CLT products must be certified for structural...
    Resource Type:
    Masters Thesis
    Full Text:
    methods and qualification criteria for benchmark structural properties and adhesive bond integrity in

  • Development of formaldehyde-free wood adhesives

    Creator:
    Peshkova, Svetlana
    Abstract:
    Wood adhesives are essential components of wood composites. At present, the commonly used wood adhesives, phenol-formaldehyde (PF) and urea-formaldehyde (UF) resins, are petroleum-based synthetic resins that may result in emission of formaldehyde in the production and use of wood composites. Because the world's oil reserves are naturally limited and formaldehyde...
    Resource Type:
    Masters Thesis
    Full Text:
    adhesive and adherends is attributed to the joint actions of three forces: mechanical interlocking

  • Multi-scale Investigation of Adhesive Bond Durability

    Creator:
    McKinley, Paige Elizabeth
    Abstract:
    Moisture durability is essential for wood composites, especially those used in building construction, where products are prone to weathering. The primary focus of this research was to determine if adhesive penetration into the cell wall has a positive influence on adhesive bond durability. To fully understand the measureable effects of...
    Resource Type:
    Masters Thesis
    Full Text:
    presented on August 5, 2016. Title: Multi-scale Investigation of Adhesive Bond Durability. Abstract

  • The application of ablative laser ultrasonics to an aluminum plate, titanium tube, and welded joints

    Creator:
    Butler, Chad L.
    Abstract:
    Laser ultrasonics can be used to nondestructively evaluate structures to determine the existence and location of surface and interior flaws. The goal of this research was to determine if laser ultrasonic techniques can be applied to the inspection of aluminum plate. titanium tubes, and large welded plate structures. The research...
    Resource Type:
    Masters Thesis
    Full Text:
    flaws in a welded joint. Currently, few researchers have applied the laser based ultrasound to flaw

  • The Effects of Construction Practices on Concrete Construction Joint Performance

    Creator:
    Panduranga Setty, Shreyas
    Abstract:
    Concrete is the most widely used construction material in the world. When constructing large concrete structures, concrete may have to be placed in multiple lifts. In these cases, fresh concrete is placed on hardened concrete. The interface that is formed between these two lifts of concrete is known as a...
    Resource Type:
    Masters Thesis
    Full Text:
    presented on May 27, 2016. Title: The Effects of Construction Practices on Concrete Construction Joint

  • Development and characterization of new formaldehyde-free soy flour-based adhesives for making interior plywood

    Creator:
    Huang, Jian
    Abstract:
    Formaldehyde-based adhesives such as urea-formaldehyde (UF) and phenol-formaldehyde (PF) adhesives dominate the current wood adhesive market. However, these adhesives are derived from petrochemicals and carcinogenic formaldehyde. In this study, we developed two formaldehyde-free adhesives based on abundant, renewable, and inexpensive soy flour (SF). The first adhesive was mainly composed of...
    Resource Type:
    Masters Thesis
    Full Text:
    adhesive market. However, these adhesives are derived from petrochemicals and carcinogenic

  • Is platelet rich plasma (PRP) the other alternative? A review and current research

    Creator:
    Ho, Louisa K. K.
    Abstract:
    Platelet-rich plasma (PRP) has been applied as a hemostatic agent since the 1970s, and a potent source of autologous growth factors since the 1990s. PRP is rich in growth factors such as platelet derived growth factor (PDGF), vascular endothelial growth factor (VEGF), transforming growth factor-β (TGF-β), fibroblast growth factor (FGF)...
    Resource Type:
    Masters Thesis
    Full Text:
    veterinary medicine. PRP has been promoted to enhance joint homeostasis, reduce synovial membrane