4.1 The axial force fatigue test is used to determine the effect of variations in material, geometry, surface condition, stress, and so forth, on the fatigue resistance of metallic materials subjected to direct stress for relatively large numbers of cycles. The results may also be used as a guide for the selection of metallic materials for service under conditions of repeated direct stress.

The Horus Heresy Book Collection -

The Horus Heresy book series is the defining epic of the Warhammer 40,000 universe. Spanning over 60 novels, novellas, and short story anthologies (primarily published by Black Library ), it chronicles the single greatest catastrophe in human history: the devastating civil war that shattered the Imperium of Man ten thousand years before the main setting of the tabletop game. The Core Story The series acts as a grand tragedy. It follows the rise and fall of Warmaster Horus Lupercal , the most beloved son of the immortal Emperor of Mankind. Tasked with leading the Great Crusade to reunite humanity, Horus is corrupted by the malevolent entities of the Warp (Chaos). He turns half of the Emperor’s twenty superhuman legions—the Space Marines—against their father.

4.3 The results of the axial force fatigue test are suitable for application to design only when the specimen test conditions realistically simulate service conditions or some methodology of accounting for service conditions is available and clearly defined.

The Horus Heresy book series is the defining epic of the Warhammer 40,000 universe. Spanning over 60 novels, novellas, and short story anthologies (primarily published by Black Library ), it chronicles the single greatest catastrophe in human history: the devastating civil war that shattered the Imperium of Man ten thousand years before the main setting of the tabletop game. The Core Story The series acts as a grand tragedy. It follows the rise and fall of Warmaster Horus Lupercal , the most beloved son of the immortal Emperor of Mankind. Tasked with leading the Great Crusade to reunite humanity, Horus is corrupted by the malevolent entities of the Warp (Chaos). He turns half of the Emperor’s twenty superhuman legions—the Space Marines—against their father.