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1176
Case study
Helical torsion spring torque testing
Requirement
Spring-loaded components are used extensively in home and consumer goods: clothes pegs, clips and old-fashioned mousetraps; small doors and flaps on cameras or hi-fi equipment; large doors and closures such as those on garages or g
1177
Case study
Primat gücü ve kırığı ısırır
gereklilik Hull York Tıp Fakültesi, Anatomik ve Beşeri Bilimler Merkezi'nde insan anatomisi ve evriminde araştırma ve öğretimi birleştirir.
1178
Case study
Furniture webbing tensile strength test
Requirement
Supported by the Royal Household of Windsor Castle, a Buckinghamshire New University student was investigating the wear and strength properties of traditional English jute-based webbing, used in the construction and restoration of
1179
Case study
Watch bezel adjustment torque testing
Requirement
Since the revival of the mechanical watch industry during the mid 1980s enthusiasts have become ever more absorbed by mechanical chronometry, taking pleasure in comparing the performance of new and old models alike. The very finest
1180
Case study
ISBT spor şapkası dönme testi
gereklilik Uluslararası İçecek Teknolojisi Uzmanları Derneği (ISBT) alkolsüz içeceklerin ve içeceklerin teknik ve bilimsel yönleri için gönüllü uygulama kodları yayınlamaktadır.
1181
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Introduction to strip method tensile testing
Among the range of tensile testing techniques, the strip method is widely recognised for its accuracy and repeatability.
1182
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Applications across sectors
Texture testing in food manufacturing
Bread softness for freshness control, snack crispness for quality assurance, firmness in
1183
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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.
1184
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Speak to an expert
Closure torque testing is vital for ensuring that packaging remains secure, protects contents, and is user-friendly.
1185
[Page extract]
Understanding torque testing
Types of torque testing in packaging
Several torque measurements are relevant to closure performance:
1186
[Page extract]
Case studies in puncture resistance testing
Protective clothing - A glove manufacturer used high-force puncture testing to optimise material layering, achieving compliance with ASTM F1342 and ISO 13996 while maintaining f
1187
[Page extract]
How peel wheel tests are conducted
Specimen preparation – The bonded material is cut to defined dimensions, ensuring uniformity of size and adhesive application.
1188
[Page extract]
Coefficient of friction (COF) explained
Understanding the COF formula
The coefficient of friction (μ) is a dimensionless value calculated as:
1189
[Page extract]
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
1190
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Understanding reverse ratchet torque
Reverse ratchet torque testing is an essential process for verifying the safety and reliability of child-resistant closures (CRCs).
1191
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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.
1192
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Types of compressive shear tests
Test configurations vary according to the material, application, and relevant industry standard.
1193
[Page extract]
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.
1194
[Page extract]
Standards and compliance
ASTM D2063 defines methods for determining application and r
1195
[Page extract]
Understanding ASTM D2718 standards
The ASTM D2718 standard sets out the procedures for conducting planar shear tests on structural panels using the
1196
[Page extract]
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.
1197
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Introduction to flexural testing
Flexural testing is a core method in materials science, used to evaluate how materials perform when subjected to bending stresses.
1198
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Puncture and shear testing techniques and equipment
Testing involves applying a force to a clamped specimen until the material fails, with the method determined by the applicable standard.
1199
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Puncture resistance testing methods
Puncture resistance measures the ability of a material to withstand an actual perforation event, simulating damage from sharp or pointed objects.
Applications include:
1200
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Introduction to five-point bend testing
The five-point bend test is a specialised method for assessing the mechanical performance of structural panels, particularly their resistance to planar shear forces.