Generic failure mechanisms in adhesive bonds
نویسندگان
چکیده
منابع مشابه
Adhesion Mechanisms of Durable Wood Adhesive Bonds
This chapter presents and discusses the current state of the art regarding adhesion mechanisms in characterizing durable adhesive bonds for wood composites. Particular emphasis is placed on phenol-formaldehyde (PF) and polymeric methylene diphenyl diisocyanate (pMDI) adhesives. An overview of current adhesion mechanisms is presented with an emphasis on categorizing adhesion mechanisms relative ...
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Understanding what makes a good wood adhesive is difficult since the type of adhesive, wood species, bonding process, and resultant products vary considerably. Wood bonds are subjected to a variety of tests that reflect the different product performance criteria in diverse countries. The most common tests involve some type of moisture resistance; both wood and adhesive factors influence this mo...
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Any consideration of the durability of the high performance composite materials and structural adhesives used in aerospace construction must recognize that these are brittle materials and that their failure mode is characterized by flaw growth and propagation. One can easily anticipate a variety of flaws and defects; surface cuts, internal cracks due to stress relief and deliberate holes cut fo...
متن کاملMeasurement of Strength of Adhesive Bonds
In order to predict the strength of an adhesive bond between two metal sheets, it is necessary to measure the physical state of the adhesive layer that mechanically joins the two pieces of metal. This requires rapidly performing a detailed analysis of the ultrasonic echoes reflected from the entire structure when it is immersed in a water bath for a normal ultrasonic pulse-echo inspection. To a...
متن کاملUltrasonic Evaluation of Thermal Degradation in Adhesive Bonds
The critical role played by adhesive bonds in lap joints is well known. A good knowledge of the mechanical properties of adhesive bonds in lap joints is a prerequisite to the design and reliable prediction of the performance of these bonded structures. Furthermore, the lap joint may be subject to high-temperature environments in service. Early detection of the degree of thermal degradation in a...
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ژورنال
عنوان ژورنال: Holzforschung
سال: 2013
ISSN: 1437-434X,0018-3830
DOI: 10.1515/hf-2011-0256