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1076
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Introduction to puncture resistance testing
Puncture resistance testing determines how well a material can withstand penetration from a sharp or pointed object.
1077
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Springs
Springs are elastic objects used to store mechanical energy and they change shape in response to external forces, returning to their original shapes when the forces are removed.
1078
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Applications in industrial settings
Insertion and withdrawal testing is not limited to electrical connectors. It is used to validate the performance of:
1079
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Introduction to peel testing
Peel testing is a fundamental method in materials testing, used to evaluate the strength of adhesive bonds between two materials.
1080
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Types of torque testing methods
Manual torque testing
Manual torque testing uses handheld or bench-mounted torque testers.
1081
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Understanding tensile strength in testing
Both pull-off and pull-out testing measure tensile strength, which is the maximum load a specimen can sustain under tension before failure.
1082
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Secant modulus compared to other moduli
Different moduli are used to describe the stiffness of materials, each calculated at different points on the stress-strain curve:
1083
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Introduction to friction in material science
Friction is a critical factor in how materials behave under movement. It is the resistive force that occurs when two surfaces are in contact and attempt to slide against each other.
1084
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Relevant textile test standards
The strip method is defined in several national and international standards, each tailored to specific fabric types and performance requirements:
1085
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Applications in industry
Engineering and manufacturing uses
Tangent modulus testing supports design validation and process control in sectors where materials operate near or beyond the elastic range, for example:
1086
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Applications across sectors
Texture testing in food manufacturing
Bread softness for freshness control, snack crispness for quality assurance, firmness in
1087
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Magnets and solenoids
Solenoids, a type of electromagnet generating a uniform magnetic field when an electric current is passed through it, have applications in many different types of industries.
1088
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Torque testing standards
A range of recognised standards define the correct procedures for reverse ratchet torque testing, ensuring consistent and reliable results.
1089
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The 3-Point Bend test goes to Summer School
Both Dr. Cote and Grubbs agree that one of the highlights of their year is the Materials Science summer course for high school students, where they had students design their own candy composites.
1090
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Step-by-step needle penetration testing process
Sample preparation
Specimens are cut to the required dimensions and conditioned to the specified environmental parameters such as temperature and humidity. Thickness and surface finish are controlled for consistency.
1091
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Standards and compliance
International standards ensure penetration and puncture testing is performed consistently for reliable and comparable results.
Key examples include:
1092
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Step-by-step test methodology
Preparation
Sample selection - Choose representative specimens, avoiding faults unless deliberately testing them.
Specimen cutting - Cut to standard dimensions with a central slit of specified
1093
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Introduction to the ring crush test
The ring crush test (RCT) is a key method for determining the edgewise compression strength of paper and paperboard.
1094
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Types of flexure tests
Different flexure testing setups are chosen based on the nature of the material, the required precision, and the industry standards being followed.
1095
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What is fastening torque
Fastening torque refers to the rotational force applied to tighten a fastener, typically measured in Newton-metres (N·m) or pound-force inches (lbf·in). The correct torque value ensures adequate clamping without overstressing components.
1096
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Types of compressive shear tests
Test configurations vary according to the material, application, and relevant industry standard.
1097
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How peel wheel tests are conducted
Specimen preparation – The bonded material is cut to defined dimensions, ensuring uniformity of size and adhesive application.
1098
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Understanding cone penetration testing
Cone penetration testing is a precision method used to determine a material's resistance to penetration by a standardised cone-shaped probe under specific force conditions.
1099
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Understanding tear strength and its importance
Tear strength measures the force a material can withstand before a tear propagates. It covers both the initial rupture and the resistance to further tearing once damage has started.
1100
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Interpreting breakaway test results
Understanding test outputs is as crucial as conducting the tests themselves.
Slip torque vs bridge torque
Slip torque reflects the resistance encountered before rotation begins—a measure of seal integrity and usability.