Secondary stress. A secondary stress is any stress in the structure which is not a primary stress or peak stress. Source: API SPEC 16R, Specification for Marine Drilling Riser Couplings, Exploration and Production Department, First Edition, January 1997. Global Standards.
Two groups of ground nesting bees commonly. found in Michigan are bumble bees and. burrower (andrenid) bees. Bumble bees are. easily recognized by their large, robust, hairy, black and yellow (sometimes orange) bodies. Bumble bees live in colonies of several. hundred individuals, but only the queens.
See the narrow bands on the honey bee abdomens below. Honey bees have narrow stripes on their abdomens which are yellow, gold, tan, brown, gray, or black. Bumble bees have wide bands of color that range from black to orange, tan, yellow, and white, and the bands start at the head and go all the way back.he different species of bumble bee have different colors and they are different sizes as well. Some are quite large, some much smaller. Both bumble bees and honey bees have hair, but bumble bees are robustly hairy: scary hairy. The hairs cover most parts of the bee from the head to the tip of the abdomen.