MATERIALS KNOW HOW

Materials Know How

MATERIALS: The Problems with Single-Point Data--Part 6

Data sheets can be limited in the information they provide on how the material performs at elevated temperatures.
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Materials

MATERIALS: Impact Testing: The Problems With Single-Point Data

Knowledge of test conditions and graphical data showing the course of the impact event can help provide engineers and designers with the information they need to make informed choices about material toughness.
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Materials Know How

MATERIALS: The Problems with Single-Point Data

In plastics, notched Izod and Charpy test results have been complicated by the way they are reported.
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Materials

MATERIALS: The Problems With Single-Point Data

Polymer properties are not constant as a function of temperature, and even small temperature changes can affect properties.
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Materials

MATERIALS: The Problems with Single-Point Data

Engineers who are used to working with metals are surprised that plastics cannot operate as close to their yield points as can metals. The yield point is not enough to tell you how the material reacts to stress.
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Materials

MATERIALS: The Problems with Single-Point Data

Properties are generally provided at a single temperature on a data sheet. But do those properties stay the same with changing temperatures? Of course not.
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Materials Know How

MATERIALS: The Trouble with Data Sheets

Data sheets are routinely relied upon, yet the data they provide is limited in scope and can lead to incorrect conclusions.
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Additives

Materials: Analyzing Filler Content

The process is considered simple. But things aren’t always as they seem.
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Materials

MATERIALS: Analysis Gone Wrong: Part 2

But even misinterpreted tests can yield an approximation of the real composition of the material.
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Testing

MATERIALS: Analysis Gone Wrong

A lot of resources are devoted each year to trying to figure out why products fail. Sometimes it’s because no one involved in a project realizes the data provided was wrong.
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